Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
ve triet » va trien, su triet
hanh dau » hang dau, danh dau, han dau
cham luc » cham soc, nhan luc, cham cuu
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
va hanh » van hanh, va thanh, va danh
ky tang » ky nang, ky dang, kho tang
te sach » toc sach
ma hoi » mai hoi, xa hoi, ma hoa
y tang » 6 tang, 7 tang, 5 tang
luc va » duc va, tuc va, loc va

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ((y tang) OR (ky tang)) ma hoi. hieu ve cham luc va hanh dau ((cua triet) or (ve triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((y tang) OR (ky tang)) ma hoi. hieu ve cham luc va hanh dau ((cua triet) OR (ve triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((y tang) OR (ky tang)) ma hoi. hieu ve cham luc va hanh dau ((cua triet) or (ve triet))".
• Adding a wildcard symbol may retrieve word variants: te sach ((y tang) OR (ky tang)) ma hoi. hieu ve cham luc va hanh dau ((cua triet) or (ve triet))*.